The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

Category: Oddities

Who’d’a thunk it?

  • Blog Summary: 2025

    Blog Summary: 2025

    Few enough folks stop by to make the bump from Hackaday’s mention of the Wasp Blower stand out:

    Summary - 2025
    Summary – 2025

    Apparently Subaru fuses remain elusive and that old Thermador wall heater retains its hotness:

    Post Views - 2025
    Post Views – 2025

    The WordPress AI came up with this prompt and image based on the minimal text above:

    AI Image - 2025
    AI Image – 2025

    Gotta get me a workshop like that …

    The AI Assistant says this post needs improvement:

    AI Assistant - 2025
    AI Assistant – 2025

    Which is why I don’t use AI for anything …

  • OMTech Laser: It Was The Focus Pen Wire

    OMTech Laser: It Was The Focus Pen Wire

    Because the focus pen worked on the bench, I was certain this had to be true:

    OMTech focus pen - failed 24V wire
    OMTech focus pen – failed 24V wire

    There is a break somewhere along the blue wire carrying 24 V to the focus pen. The signal and 0 V wires are fine.

    I updated the original post, because I’m going to use that picture a lot whenever the subject of laser machine wiring comes up.

  • Desktop PC Fuzz

    Desktop PC Fuzz

    Obviously, I haven’t popped the top on this PC for a while:

    Optiplex 9020 - intake fuzz
    Optiplex 9020 – intake fuzz

    Some fuzz made it past the grille:

    Optiplex 9020 - internal fuzz
    Optiplex 9020 – internal fuzz

    PSA: In the unlikely event you still use a desktop PC, it’s time to pop the top on yours, too.

  • Smashed Glass Coaster: Rivers of Crack

    Smashed Glass Coaster: Rivers of Crack

    Looking at that big smashed-glass coaster from a different angle showed interesting patterns:

    Printed Fragment Coaster - 165mm - long cracks
    Printed Fragment Coaster – 165mm – long cracks

    Although the larger fragments were still holding together when I laid them in their recesses, they apparently consist of several sub-fragments with larger continuous cracks letting the epoxy flow / ooze inside.

    Now that I know what to look for, the original picture also shows them, albeit less distinctly:

    Printed Fragment Coaster 165mm - overview
    Printed Fragment Coaster 165mm – overview

    They’re not obvious in the scanned image of the fragments, although I could convince myself I see some:

    Fragments 165mm square - scan sample
    Fragments 165mm square – scan sample

    The many smaller fragments I’ve been turning into coasters probably separated from similar large chunks along such cracks, which is why I’ve never seen rivers of crack before.

    Apologies if you arrived here expecting a tirade concerning the drug trade … :grin:

  • Hawk With Snake

    Hawk With Snake

    Do you see the Cooper’s Hawk?

    Hawk with snake 2025-11-04 - 082
    Hawk with snake 2025-11-04 – 082

    Neither did I!

    (The last three digits in the caption tick along at 60 frame/s. Opening each iamge in a new tab will let you embiggen the details, although the images aren’t all that great.)

    The second wingbeat, over on the left, is more visible as the hawk lifts off:

    Hawk with snake 2025-11-04 - 112
    Hawk with snake 2025-11-04 – 112

    This was about when I figured out what was going on:

    Hawk with snake 2025-11-04 - 151
    Hawk with snake 2025-11-04 – 151

    A hawk can easily outfly me!

    Hawk with snake 2025-11-04 - 207
    Hawk with snake 2025-11-04 – 207

    The snake dangling from the hawk’s talons didn’t see it coming, either:

    Hawk with snake 2025-11-04 - 213
    Hawk with snake 2025-11-04 – 213

    Up and away!

    Hawk with snake 2025-11-04 - 225
    Hawk with snake 2025-11-04 – 225

    About 2.3 s of elapsed time: plenty for a hawk and not nearly enough for me. Or the snake, for that matter.

  • Mantis Durability

    Mantis Durability

    A Praying Mantis appeared on the house wall:

    Mantis - alert
    Mantis – alert

    The next morning found it huddled against the cold:

    Mantis - chilled
    Mantis – chilled

    It had reached operating temperature and gone about its business a few hours later.

    I deployed a cardboard Mantis in its honor as a seasonally appropriate yard decoration, but mine didn’t survive the night nearly as well as the real one:

    Mantis - dismantled
    Mantis – dismantled

    I doubt a predator was involved …

    A site search will reveal previous encounters with their kind.

  • No Kings

    No Kings

    I discovered this commentary, in several variations in different contexts, after attending the Poughkeepsie No Kings protest last weekend:

    You are allowed to say, at any point, “I can’t support this”.

    Even if you did.

    Even if you were unsure.

    You can say, at any point, “This has gone too far.”

    And, while the best time to say that was earlier, the second best time is now.

    That is relevant, because the Executive branch of the United States government has internalized two facts:

    • There are no rules
    • There are no consequences

    The President and the Executive branch now act with the knowledge that the separation of powers, the checks and balances, and the restrictions written into the US Constitution no longer apply.

    Justifications based on Constitutional hairsplitting are irrelevant. The Founding Fathers did not intend the Executive branch to operate as it does now.

    Justifications based on “But what about …?” are irrelevant. The scale of current malfeasance dwarfs all precedent; there are no valid comparisons.

    Justifications based on “But Congress is dysfunctional!” are irrelevant. It takes only one to dysfunction and the parties have been swapping irresponsibility for decades.

    I commend to your attention the Army Talk Orientation Fact Sheet 64 from March 1945. It is straight-up US WWII propaganda with a rosy view of the Soviet Union, but you should fact-check all items in the section “Can We Spot It?” on page 4 against current events.

    Should you think your particular identity, institution, tradition, behavior, property, possessions, protection, legality, or beliefs will remain untouched because you’re in a particular group, you are incorrect.

    I changed my voter registration to “No Party” several decades ago, when it became evident the Republican Party had lost interest in whatever small-government / low-deficit / personal-responsibility principles it may have once had; thinking it had those principles was likely a misunderstanding on my part.

    I cannot support many planks of the Democratic Party’s platform, either, but they remain based in rule-of-law and have some appreciation of what functions a government should perform.

    I still vote in every election and intend to continue doing so.

    WordPress likes images and this seems appropriate:

    No Kings Logo
    No Kings Logo